package com.breeze.components.web.interceptor;

import cn.hutool.core.date.StopWatch;
import cn.hutool.core.io.IoUtil;
import cn.hutool.core.map.MapUtil;
import com.alibaba.ttl.TransmittableThreadLocal;
import com.breeze.components.core.util.StringUtil;
import com.breeze.components.core.util.json.Jackson;
import com.breeze.components.web.config.ApplicationConfig;
import com.breeze.components.web.filter.RepeatedlyRequestWrapper;
import jakarta.servlet.http.HttpServletRequest;
import jakarta.servlet.http.HttpServletResponse;
import java.io.BufferedReader;
import java.util.Map;
import lombok.NonNull;
import lombok.extern.slf4j.Slf4j;
import org.springframework.http.MediaType;
import org.springframework.web.servlet.HandlerInterceptor;
import org.springframework.web.servlet.ModelAndView;

/**
 * web的调用时间统计拦截器
 *
 * @author breeze
 */
@Slf4j
public class WebInvokeTimeInterceptor implements HandlerInterceptor {

  private final TransmittableThreadLocal<StopWatch> invokeTimeTL = new TransmittableThreadLocal<>();

  @Override
  public boolean preHandle(
      @NonNull HttpServletRequest request,
      @NonNull HttpServletResponse response,
      @NonNull Object handler)
      throws Exception {
    if (ApplicationConfig.isTest()) {
      String url = request.getMethod() + " " + request.getRequestURI();

      // 打印请求参数
      if (isJsonRequest(request)) {
        String jsonParam = "";
        if (request instanceof RepeatedlyRequestWrapper) {
          BufferedReader reader = request.getReader();
          jsonParam = IoUtil.read(reader);
        }
        log.info("开始请求 => URL[{}],参数类型[json],参数:[{}]", url, jsonParam);
      } else {
        Map<String, String[]> parameterMap = request.getParameterMap();
        if (MapUtil.isNotEmpty(parameterMap)) {
          String parameters = Jackson.to(parameterMap);
          log.info("开始请求 => URL[{}],参数类型[param],参数:[{}]", url, parameters);
        } else {
          log.info("开始请求 => URL[{}],无参数", url);
        }
      }

      StopWatch stopWatch = new StopWatch();
      invokeTimeTL.set(stopWatch);
      stopWatch.start();
    }
    return true;
  }

  @Override
  public void postHandle(
      @NonNull HttpServletRequest request,
      @NonNull HttpServletResponse response,
      @NonNull Object handler,
      ModelAndView modelAndView)
      throws Exception {}

  @Override
  public void afterCompletion(
      @NonNull HttpServletRequest request,
      @NonNull HttpServletResponse response,
      @NonNull Object handler,
      Exception ex)
      throws Exception {
    if (ApplicationConfig.isTest()) {
      StopWatch stopWatch = invokeTimeTL.get();
      stopWatch.stop();
      log.info(
          ">>>>结束请求 => URL[{}],耗时:[{}]毫秒",
          request.getMethod() + " " + request.getRequestURI(),
          stopWatch.getTotalTimeMillis());
      invokeTimeTL.remove();
    }
  }

  /**
   * 判断本次请求的数据类型是否为json
   *
   * @param request request
   * @return boolean
   */
  private boolean isJsonRequest(HttpServletRequest request) {
    String contentType = request.getContentType();
    if (contentType != null) {
      return StringUtil.startWithIgnoreCase(contentType, MediaType.APPLICATION_JSON_VALUE);
    }
    return false;
  }
}
